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30229641 = 3213258373
BaseRepresentation
bin111001101010…
…0010010001001
32002212211021100
41303110102021
530214322031
62555532013
7514643031
oct163242211
962784240
1030229641
1116077a82
12a15a009
136355680
14402c8c1
1529c1de6
hex1cd4489

30229641 has 12 divisors (see below), whose sum is σ = 47024068. Its totient is φ = 18602784.

The previous prime is 30229631. The next prime is 30229643. The reversal of 30229641 is 14692203.

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 23619600 = 2571^2 + 4860^2 .

It is not a de Polignac number, because 30229641 - 25 = 30229609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30229643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129070 + ... + 129303.

Almost surely, 230229641 is an apocalyptic number.

It is an amenable number.

30229641 is a deficient number, since it is larger than the sum of its proper divisors (16794427).

30229641 is a wasteful number, since it uses less digits than its factorization.

30229641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258392 (or 258389 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30229641 is about 5498.1488703017. The cubic root of 30229641 is about 311.5140672820.

The spelling of 30229641 in words is "thirty million, two hundred twenty-nine thousand, six hundred forty-one".

Divisors: 1 3 9 13 39 117 258373 775119 2325357 3358849 10076547 30229641